21826989

素因数分解:

$3^6\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:476

約数の個数: 28

約数和(自身を含む): 33227200

約数和(自身を除く): 11400211

約数列:

[1, 3, 9, 27, 79, 81, 237, 243, 379, 711, 729, 1137, 2133, 3411, 6399, 10233, 19197, 29941, 30699, 57591, 89823, 92097, 269469, 276291, 808407, 2425221, 7275663, 21826989]

約数ペア:

[(1, 21826989), (3, 7275663), (9, 2425221), (27, 808407), (79, 276291), (81, 269469), (237, 92097), (243, 89823), (379, 57591), (711, 30699), (729, 29941), (1137, 19197), (2133, 10233), (3411, 6399)]